Clamping-tool.



. E. JA'oK.

CLAMPING TOOL.

APPLIOATIDN FILED nu. '1, 1910..

986,464. Patented Manu, 1911.

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l UNITED sTATEs P ATENT OFFICE,

nonna n Jeux, or iluminar., wisconsn'w, seremos or omi-HALF m0 romsPLATE, 0F EILWAUKEE, WISCONSIN.

CLAHPING-TOOL.

Speculation of Letters latent.

Application Med Inch 7, 11h10. Serial lo. 547,871.

Patented Mar. 14, 1911.

To all whom it may ccmccm:

Be it known that I, Roemer E. JACK a citizen of the United States,residing at Milwaukee, county of`Milwaukee, and State of "Wisconsin,yhave invented new and useful Improvements in Clamping-Tools, of whichthe followin 'is a specification. A

. My invention relates tob improvements 1n clamping tools and it,pertains more especially, amon other things, to the construction of theevice for quickly adjustin the movable clamping member of the o' amp"nearer to or farther from the stationary member preparatory to a plyingthe action of a screw to said movab e clamping naem- 4 the op )osit'eend of the screw threaded sleeve from hat shown in Fig. 2, and Fig: 5 isa transverse section of the slidable adjustable rod of the movableclamping member.

'Like parts are identified by the same reference numerals throughout theseveral views.

My clamp comprises, among other things, the ri 'd yoke 1 provided at/oneend with :n.ixe clamping member 2 and at its op posite end with astationary screw threaded sleeve 3 for the reception of the revoluble'screw threaded sleeve 4.-

5 is a movable clampin member, which is connected with one en 'of theslidable member 6 through an ordinary ball and socket jointv 7. Theslidable member 6 is provided with a `plurality of radial lugs 8 iextending from opposite sides thereof and said lugs are respectivelyadapted to bear against the end member 9 of the revoluble sleeve 4. .Theend member 9 is provided 4with an elon atedslot 10 for the passage ofthe radia lugs 8, whereby when the slidable member 6'is turned so as tobring said radial lugs 8 in alinement with sai aperture 10, saidslidable member G may be freely moved in either direction through thesleeve 4. 'iihus it iis obvious that when desirous to apply the clampingtool to an obj-ect, the stationa -bearingmember 2 is placed upon one:side thereof, when the slidable member 6 is moved until the 'opposmgclamping member .5 is brought in corntact with the opposite side of saidobject. When this is done, the slidable member 2 is Irevolved togetherwith the screw threaded sleeve 4, -whereby great pressure may be appliedto said object through the action of said screw jthreaded .sleeve 4 inthe screw threaded sleeve 3, while said slidable member 6 is preventedfrom m'oving back in said revoluble sleeve 4 by contact of said radiallugs 8 with the op osing sides 11, 11, of said end member. T e revolublesleeve 4 is provided on its two opposing sides with inwardly projectingbeads 12, .12, against which theradial lugs 8 of the slidable member 6are adapted to contact, and the slidable member 6 is revolved, whereby arevoluble movement is communicated from said slidable member 6 to saidsleeeve as said slidable memberis turned.

1 3 is an operating handle, by which the slidable member 6, togetherwith the sleeve 4, are revolved in their supporting bearings. Thus itwill be understood that the clamping members 2 and 5 are adjusted nearerto and `fartherfrom each other against the object to tbe clamped, by themovement of said slidable member 6;that when said clamping members arethus adjusted and the handle 13 is revolved, said clampin member 5 willbe moved forwardly andwill be caused to bear with great pressure againstthe object to be clamped. The shank 14 of the slidable' member 6 is ofsuch width as to bear at its opposing edges against the opposing wallsof the sleeve 4, whereby when the radial lugs 8 have been moved forwardout of contact with the beads 12, the opposing edges of said shank 14are adapted as the slidable member is revolved, to contact with 1. In a'clam ing tool of the described stationary clamping member and at itsopposite end with a screw threaded sleeve, an

open revoluble sleeve having screw threadedv bearings in said stationarysleeve and provided at one ond only with inwardly extending contactbearings, a slidable member supported within said sleeve and providedwith a series of radial lu s adapted to bear against the outer en ofsaid revoluble sleeve, and means connected with said slidable member forrevolving the threaded sleeve in said stationary sleeve.

2. In a clam ing tool of the described class, the com mation of anintegrally formed yoke provided at one end with a stationary clampingmember and at its oppo- -site end with a screw threaded sleeve, an

open revoluble sleeve having screw threaded bearings in said stationarysleeve und provided at one end only with inwardly extending contactbearin s,A and near its opposite end With'longitudmally arrangedinwardly extending beads, a slldable member supported Within Said sleeveand provided at one end with a clamping member revolubl connectedtherewith, at its oppositeend wit an operating handle, and upon itsrespective sides with a series of radial lu s, said lugs being adaptedto bear against t e outer end of said revoluble sleeve, the radial lugsof said slldable members being adapted as the latter is o urned, toContact with said' longitudinal beads and turn saidsleeve in ltsthreaded bearings.

In testimony whereof I aix my signature in the presence of twowitnesses.

f ROBERT E. JACK. Witnesses:

JAS. B; ERWIN, O. R. ERWIN.

